Question about Panasonic NN-C980 Convection/Microwave Oven

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Panasonic dimension 4 microwave/convection oven

Micvrowave part of oven not working, convection oven/grill fine. Is it a problem with the magnetron? Is there some form of internal fuse? Cheers in advance

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  • Anonymous Nov 14, 2008

    I set the power and then the timer, press start. It goes for a couple of seconds, then shuts off.

  • Manny Prag
    Manny Prag Nov 23, 2013

    I replaced the fuse and it blew again

  • Ron Christensen
    Ron Christensen Dec 06, 2013

    I have a dimesion 4 panasonic mirowave and the under the counter light have quit. I replaced the light bulbs but still no light

  • Anonymous Mar 21, 2014

    Panasonic Convection Microwave 42 Litres the grail not working

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Does this unit have a turntable? If so does it turn when on?

Posted on Sep 24, 2008

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My Dimension 4 Micro/convection just stopped dead. I have checked fuses, checked power supply. Any suggestions.

Posted on Apr 06, 2011

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No. it doesn't have a turntable

Posted on Nov 14, 2008

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SOURCE: Panasonic dimension 4 microwave/convection oven

It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 on high resistance range for short circuit, the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

Posted on Dec 31, 2010

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you may decide to replace the microwave instead of repairing.

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There's a grating for the interior light, and another panel a little further back for the microwave output of the magnetron. The microwave panel should not have a hole in it. That would probably indicate some kind of magnetron failure. Not user serviceable. Time to visit a competent tech and/or a service facility.

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test the a) HV rectifier b) Capacitor HV c) HV transformer d) Magnetron e) test the swich for door for short.f) circuit board main is short.
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Panasonic dimension 4 microwave/convection oven Micvrowave part of oven not working, convection oven/grill fine. Is it a problem with the magnetron? Is there some form of internal fuse?


It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 on high resistance range for short circuit, the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

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On microwave mode the oven makes light buzzing noise and does not heat food. Convection oven and grill functions work perfectly. michaelchrys@yahoo.com


The magnetron (the part that heats the food) may be bad or the circuitry to the magnetron may have burned out. Basically my advice is that if you have no electrical expertise, it isn't worth fixing. The magnetron if bad, costs almost as much as a new microwave. If you open it up (make sure it has been unplugged for a few hours and don't seen any obvious burnt parts (including a fuse and the diodes), then most likely the magnetron is done and a new microwave is the way to go.

Let me know how this works out for you.

Benjamin

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Test the high voltage capacitor, the rectifier diode.or the magnetron.

The diode and capacitors can br tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, even if power is off. Capacitors can get discharged by shorting their two contacts.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.

All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts.

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If it stops after 22 seconds, that means the controller has detected a problem, usually a problem with the inverter or a bad magnetron.

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I would recommend that you contact your nearest Panasonic-authorized servicer.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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